Redundant Hot-Plug Fans; Hot-Plug Hard Disk Drives - Compaq DL590 - HP ProLiant - 1 GB RAM Technology Brief

SCSI – Small Computer
Systems Interface
TC020702TB
T B
ECHNOLOGY RIEF
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Figure 12: Three redundant, hot-plug system power modules provide DC power to the server's
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The primary power supplies and their associated system power modules are N+1 redundant and
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load balancing. Two primary power supplies and system power modules can support a fully
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loaded ProLiant DL590/64 server; the third power supply and system power module provide
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redundancy. If one of the primary power supplies or system power modules fails, the redundant
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component takes the load while the failure is resolved. Since all the power supplies and system
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power modules are hot pluggable, a failed power supply can be replaced while the server is up and
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running.
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Redundant Hot-Plug Fans

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The ProLiant DL590/64 server includes two hot-plug system fans in the rear of the server; two
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fans in the front of the server provide redundancy. If one of the primary fans fails, a system alert
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triggers the associated secondary (or redundant) fan to take over automatically. The redundant
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hot-plug system fans protect the various server components from overheating and help prevent
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possible system interruption.
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Four additional hot-pluggable, redundant fans cool the system power modules, media bay, and PCI
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area of the server. Two of these 6-inch fans are required to cool the components, and two more
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provide redundancy.
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All of the fans in the ProLiant DL590/64 server are hot pluggable. They can be replaced while the
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server is up and running with absolutely no downtime.
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Hot-Plug Hard Disk Drives

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The ProLiant DL590/64 server supports four 1-inch, Wide Ultra-2 or Wide Ultra-3 SCSI, internal
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hot-plug hard disk drives. The internal drives can be controlled by an integrated Smart Array
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controller to optimize them for OS and boot support. When the server is configured for maximum
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capacity, it can support 291.2 GB of internal storage.
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components.